Question

What is magnetic moment of iron in $\left[Fe\right(H_{2}O{)}_{5}NO{]}^{2+}$?

• A. $\sqrt{8}BM$
• B. $\sqrt{15}BM$
• C. $\sqrt{24}BM$
• D. None of these

Answer 1

The correct option is C $\sqrt{24}BM$

The electronic configuration of $F{e}^{2+}$ is $3d^6$.

n=number of unpaired electrons= 4

magnetic moment = $\sqrt{n(n+2)}BM=\sqrt{24}BM$